Glueball Resonance and Alternative Explanations of the Reaction. Pi. −p. --]. Phi Phi N* PDF Download
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The observation of three resonances (in the reaction .pi.−p .-->. phi phi n) which break down the OZI suppression was attributed to the production of these states by 1-3 glueball(s). The final partial wave analysis of approx. = 4000 phi phi n events was presented and agrees with prior publications within errors. Alternative explanations in terms of otherwise explaining the OZI suppression breakdown or finding other kinematic mechanisms to explain the BNL/CCNY data are discussed and found to be incorrect and do not fit the characteristics of the experimental data. 18 refs., 6 figs.
![Glueball Resonance and Alternative Explanations of the Reaction. Pi. −p. --]. Phi Phi N* PDF](https://books.google.com/books/content/images/frontcover/e2qZnQAACAAJ?fife=w80-h100)
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The observation of three resonances (in the reaction .pi.−p .-->. phi phi n) which break down the OZI suppression was attributed to the production of these states by 1-3 glueball(s). The final partial wave analysis of approx. = 4000 phi phi n events was presented and agrees with prior publications within errors. Alternative explanations in terms of otherwise explaining the OZI suppression breakdown or finding other kinematic mechanisms to explain the BNL/CCNY data are discussed and found to be incorrect and do not fit the characteristics of the experimental data. 18 refs., 6 figs.
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Languages : en
Pages : 17
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Category : Nuclear physics
Languages : en
Pages : 716
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Category : Power resources
Languages : en
Pages : 1224
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Languages : en
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The experimental evidence and the relevant phenomenology of glueballs are reviewed. The opinion is expressed that the glueball resonance explanation is the only viable one for the data on g/sub T/, g/sub T1/, and g/sub T11/. It is shown that alternative explanations are either incorrect, or do not fit the data, or both, leading to the conclusion that these states are probably produced by glueballs. The OZI rule is explained. Glueball masses and width are considered. Some conclusions are drawn regarding an OZI suppressed reaction .pi.−p .-->. phi phi n. Glueball candidates from the J/psi radiative decay are discussed. 44 refs., 16 figs. (LEW).
![New Higher-statistics Study Of. Pi. −p. --]. Phi Phi N and Evidence for Glueballs PDF](https://books.google.com/books/content/images/frontcover/nluPAQAACAAJ?fife=w80-h100)
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We have obtained 1203 events of the reaction .pi.− .-->. phi phi n at 22 GeV/c over a small background (approx. 10%). As in our prior experiment the OZI suppression was essentially entirely absent. A partial wave analysis allowing waves up to J = 4 and L = 3 demonstrated that a good fit was obtained with 2 waves, each well described by a Breit-Wigner resonance. The addition of another wave one at a time in turn, resulted in no statistical significance for the wave. Because of the complete breakdown of the OZI suppression, and other characteristics of the data, these two resonances are strong glueball candidates. All the quantum numbers were determined and are given together with the masses and widths. The glueball candidates given provide strong evidence for one or more primary glueballs in this mass region.
![Glueballs in the Reaction. Pi. −p. --]. Phi Phi N PDF](https://books.google.com/books/content/images/frontcover/B-qUnQAACAAJ?fife=w80-h100)
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The BNL/CCNY collaboration has increased the statistics on the reaction 22 GeV/c .pi.−p .-->. phi phi n from 1203 to approx. = 4000 events. A preliminary partial wave analysis yields three states, all with J/sup PC/ = 2+, which we conclude are produced by glueballs. Previously we had two such states, both with J/sup PC/ = 2/sup + +/. The data analysis, and the QCD arguments for these states being produced by glueballs will be presented and discussed.
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Category : Physics
Languages : en
Pages : 914
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Category : Science
Languages : en
Pages : 1048
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Category : Nuclear energy
Languages : en
Pages : 1390
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